... 201x4 is a high capacity, shock resistant, gelular,Type I ,strongly basic anion exchange resin. For Efficient Demineralibation Including ... Removal201x4 is a high capacity, shock resistant, gelular,Type I ,strongly basic anion exchange resin supplied in the chloride ... 0gpm/cu/ft.)Regenerant Contact Time _____________At least 40 minutesRegenerant Level ____________________112 -300g/L (4 to 10 pounds/ cu/ ...